Backport Linker API (#10)

Signed-off-by: Edoardo Vacchi <[email protected]>

pom.xml

@@ -18,23 +18,25 @@
     <maven.compiler.source>11</maven.compiler.source>
     <maven.compiler.target>11</maven.compiler.target>
     <maven.compiler.release>11</maven.compiler.release>
+
+    <chicory.version>0.0.12</chicory.version>
   </properties>
 
   <dependencies>
     <dependency>
       <groupId>com.dylibso.chicory</groupId>
       <artifactId>runtime</artifactId>
-      <version>0.0.12</version>
+      <version>${chicory.version}</version>
     </dependency>
     <dependency>
       <groupId>com.dylibso.chicory</groupId>
       <artifactId>wasi</artifactId>
-      <version>0.0.12</version>
+      <version>${chicory.version}</version>
     </dependency>
     <dependency>
       <groupId>com.dylibso.chicory</groupId>
       <artifactId>aot</artifactId>
-      <version>0.0.12</version>
+      <version>${chicory.version}</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>

src/main/java/org/extism/chicory/sdk/ChicoryModule.java

@@ -0,0 +1,43 @@
+package org.extism.chicory.sdk;
+
+import com.dylibso.chicory.aot.AotMachine;
+import com.dylibso.chicory.runtime.Module;
+
+import java.nio.file.Path;
+
+class ChicoryModule {
+
+    static final boolean IS_NATIVE_IMAGE_AOT = Boolean.getBoolean("com.oracle.graalvm.isaot");
+
+    static Module fromWasm(ManifestWasm m) {
+        if (m instanceof ManifestWasmBytes) {
+            ManifestWasmBytes mwb = (ManifestWasmBytes) m;
+            return Module.builder(mwb.bytes).build();
+        } else if (m instanceof ManifestWasmPath) {
+            ManifestWasmPath mwp = (ManifestWasmPath) m;
+            return Module.builder(Path.of(mwp.path)).build();
+        } else if (m instanceof ManifestWasmFile) {
+            ManifestWasmFile mwf = (ManifestWasmFile) m;
+            return Module.builder(mwf.filePath).build();
+        } else if (m instanceof ManifestWasmUrl) {
+            ManifestWasmUrl mwu = (ManifestWasmUrl) m;
+            return Module.builder(mwu.getUrlAsStream()).build();
+        } else {
+            throw new IllegalArgumentException("Unknown ManifestWasm type " + m.getClass());
+        }
+    }
+
+    static Module.Builder instanceWithOptions(Module.Builder m, Manifest.Options opts) {
+        if (opts == null) {
+            return m;
+        }
+        // This feature is not compatibly with the native-image builder.
+        if (opts.aot && !IS_NATIVE_IMAGE_AOT) {
+            m.withMachineFactory(AotMachine::new);
+        }
+        if (!opts.validationFlags.isEmpty()) {
+            throw new UnsupportedOperationException("Validation flags are not supported yet");
+        }
+        return m;
+    }
+}